Mortgage Comparison Calculator — 15-Year vs 30-Year with PMI, Tax & Insurance
Compare 15-year vs 30-year mortgages side by side with different rates, PMI, property taxes, and insurance. See the payment difference, total interest, and lifetime savings to choose your ideal term.
15-Year vs 30-Year Mortgage
Results update instantly as you type
Enter Values
_breakdown
{"loanAmount":320000,"downPaymentPct":"20.0","hasPmi":false,"monthlyPmi":0,"monthlyTax":400,"monthlyInsurance":100,"basePayment15":2614.6670547876274,"basePayment30":2022.6176751774892}
Embed Code
Copy and paste this HTML snippet into any web page to embed this calculator directly.
<iframe src="http://127.0.0.1:54963/embed/finance/mortgage-comparison-calculator?ref=embed" title="Mortgage Comparison Calculator — 15-Year vs 30-Year with PMI, Tax & Insurance" width="100%" style="max-width:600px; border:none; height:500px;" loading="lazy"></iframe>
Direct Link
Share this link to let others open the calculator in their browser.
Total Savings
$347,502
63% less interest
Extra Monthly (15yr)
$592
Key Insight
15-year: $3,115/month — $150,640 interest. 30-year: $2,523/month — $408,142 interest. You save $347,502 with the 15-year term.
The Formula
This calculator compares a 15-year vs 30-year mortgage side by side, accounting for different interest rates, property taxes, insurance, and PMIInsurance required by lenders when the down payment is less than 20% of the home price. Protects the lender, not the borrower.. The shorter term almost always has a lower rate but higher monthly payment, while the longer term has lower payments but dramatically more total interest. The key insight: the "savings" from a 15-year term is typically hundreds of thousands of dollars, but only if you can afford the higher monthly payment.
Variable Definitions
Private Mortgage Insurance
Required when down payment is less than 20%. Typically 0.3-1.5% of the loan amount annually, paid monthly until you reach 20% equity.
Loan-to-Value Ratio
The loan amount divided by the home price. LTV above 80% triggers PMI requirement.
Escrow Payment
Monthly payment that includes taxes and insurance held in escrow by the lender, paid on your behalf when due.
How to Use This Calculator
- 1
Enter the home price and your down payment amount.
- 2
Enter current 15-year and 30-year mortgage rates.
- 3
Optionally add property tax rate and annual insurance for a true monthly comparison.
- 4
If down payment is under 20%, enter your estimated PMI rate.
- 5
Compare the monthly payment and total cost side by side.
Common Applications
- Compare a 15-year versus 30-year mortgage side by side to see the trade-off between lower monthly payments and total interest savings.
- Determine whether the higher monthly payment of a shorter mortgage term is worth the hundreds of thousands of dollars in interest saved over the loan life.
- Factor in PMIInsurance required by lenders when the down payment is less than 20% of the home price. Protects the lender, not the borrower., property taxes, and insurance to get a true monthly payment comparison between different mortgage options.
15-year mortgages have higher monthly payments but save significantly on total interest over the loan life.
Understanding the Concept
The 15-year vs 30-year mortgage decision is one of the most consequential financial choices a homebuyer makes. A 15-year mortgage typically offers a lower interest rate (often 0.5-1% lower) and builds equity twice as fast, but requires a significantly higher monthly payment. Over the life of the loan, the 30-year mortgage can cost $100,000-$300,000+ more in interest. However, the 30-year offers lower monthly payments and more flexibility — the difference can be invested elsewhere. This calculator gives you the exact numbers for your specific scenario so you can make an informed tradeoff.
Frequently Asked Questions
Sources & References
Related Calculators
Reviews
No reviews yet. Be the first to share your experience with Mortgage Comparison Calculator — 15-Year vs 30-Year with PMI, Tax & Insurance.
Write a Review